The GBX0400030554F is a 40 mm diameter planetary gearbox with a 3:1 reduction ratio. Straight-tooth gearing delivers 94 % efficiency, which means roughly 6 % of input power is lost as heat — acceptable for most servo or stepper axes, but the thermal rise should be accounted for in the enclosure if the duty cycle is high. Maximum torsional backlash is 24 arcmin — this is a standard-precision grade, not a zero-backlash unit. For positioning applications that require repeatability under 10 arcmin, this gearbox will introduce cumulative error; a preloaded or dual-drive arrangement would be needed. Torsional rigidity is rated at 1 N·m/arcmin, meaning the output shaft deflects 1 arcmin per N·m of applied torque. This stiffness figure, combined with the backlash, defines the windup under load — relevant when sizing for a ball-screw or rack-and-pinion axis.
Load ratings and service life — 30 000 hours at 100 rpm
Rated service life is 30 000 hours at 100 rpm and 86 °F (30 °C). At the same speed and temperature, maximum axial force (Fa) is 200 N for 10 000 hours, derating to 160 N for the full 30 000-hour life. Maximum radial force (Fr) follows the same derating: 200 N at 10 000 hours, 160 N at 30 000 hours, with the force applied at mid-distance from the output shaft. The gearbox is lubricated for life — no maintenance re-greasing interval. Operating ambient temperature range is -13 to 194 °F (-25 to 90 °C), covering most indoor industrial environments but not extended high-heat zones near ovens or furnaces. Shaft material is C 45 steel, housing is black anodised aluminium. The 40 mm external diameter suits compact mounting footprints where panel space is constrained.
Obsolete — sourcing through independent channels
Per the manufacturer's lifecycle record, the GBX0400030554F is classified as obsolete. For BOM lines that require this exact reduction ratio and 40 mm form factor, the only supply path is through independent surplus or broker channels. Availability is lot-specific and confirmed at RFQ.